Pith Number

pith:BYQU5PYD

pith:2023:BYQU5PYDYK2T63G7IF622KZHAR

not attested not anchored not stored refs pending

Cubical sites as Eilenberg-Zilber categories

Timothy Campion

arxiv:2303.06206 v1 · 2023-03-10 · math.CT · math.AT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BYQU5PYDYK2T63G7IF622KZHAR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T05:50:15.947604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e214ebf03c2b53f6cdf417dad2b270467d19895d78ac130d94f285a98a8acf4

Aliases

arxiv: 2303.06206 · arxiv_version: 2303.06206v1 · doi: 10.48550/arxiv.2303.06206 · pith_short_12: BYQU5PYDYK2T · pith_short_16: BYQU5PYDYK2T63G7 · pith_short_8: BYQU5PYD

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BYQU5PYDYK2T63G7IF622KZHAR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 0e214ebf03c2b53f6cdf417dad2b270467d19895d78ac130d94f285a98a8acf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9cdbc78029e7e57a5051f77ecef9fd95da291e3adb90112115730bddb108b93",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2023-03-10T21:03:49Z",
    "title_canon_sha256": "e5b61e9580a59b7b6a9dde719aa14591fb481b8b81336c44e9067687b0d6a9af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.06206",
    "kind": "arxiv",
    "version": 1
  }
}